DCF (Discounted Cash Flow)

A valuation method that estimates the present value of a company based on projected future cash flows.

What Is Discounted Cash Flow (DCF)?

Discounted Cash Flow (DCF) is considered the gold standard of valuation methods by many professional investors. It values a company by projecting all of its future cash flows and then "discounting" them back to today's value using an appropriate discount rate.

The core idea is simple: a dollar tomorrow is worth less than a dollar today. DCF quantifies exactly how much less, based on the time value of money and the risk involved.

How DCF Works (Simplified)

1. Project future cash flows: Estimate the company's free cash flow for the next 5-10 years.
2. Calculate terminal value: Estimate the value of all cash flows beyond year 10 (since companies theoretically operate forever).
3. Choose a discount rate: Typically the weighted average cost of capital (WACC), reflecting the riskiness of the investment.
4. Discount back to present: Apply the discount rate to convert future cash flows into present value.
5. Sum it up: The total present value of all future cash flows equals the company's intrinsic value.

Limitations

DCF is only as good as its assumptions. Small changes in the growth rate or discount rate can dramatically change the output. This is both its strength (forces disciplined thinking about assumptions) and its weakness (can be manipulated to justify any price). Warren Buffett famously uses DCF but has said: "I've never seen a DCF model that I believed."